Note 6 - Loans and Allowance for Credit Losses on Loans (ACLL) - Summary of Loans, Net of Unearned Fees (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023		Mar. 31, 2023	Dec. 31, 2022
Loans and Leases Receivable, Net of Deferred Income	$ 3,697,042	$ 3,681,612	[1]
Less allowance for credit losses - loans	49,232	48,090	[1]	$ 40,836	$ 38,899
Loans, net	3,647,810	3,633,522	[1]
Commercial Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	533,214	503,842
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Loans and Leases Receivable, Net of Deferred Income	167,386	156,941
Less allowance for credit losses - loans	1,271	1,207		871	966
Commercial Real Estate Owner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	178,994	170,391
Less allowance for credit losses - loans	456	543		1,125	1,176
Commercial Real Estate Owner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	223,027	217,776
Less allowance for credit losses - loans	1,162	601		460	426
Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Loans and Leases Receivable, Net of Deferred Income	216,170	215,642
Less allowance for credit losses - loans	3,713	3,124
Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Loans and Leases Receivable, Net of Deferred Income	80,838	68,517
Less allowance for credit losses - loans	186	79		90	82
Multifamily [Member]
Loans and Leases Receivable, Net of Deferred Income	309,190	302,298
Less allowance for credit losses - loans	3,115	3,144		3,303	2,907
Commercial Real Estate Nonowner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	247,109	254,246
Less allowance for credit losses - loans	2,647	2,518		1,941	1,362
Commercial Real Estate Nonowner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	427,641	413,634
Less allowance for credit losses - loans	2,910	2,747		2,410	2,452
Land and Land Improvements [Member]
Loans and Leases Receivable, Net of Deferred Income	105,425	145,258
Less allowance for credit losses - loans	3,585	5,576		3,970	3,482
Construction Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	341,727	374,026
Less allowance for credit losses - loans	12,647	14,283		11,759	11,138
Residential 1-4 Family Real Estate, Personal Residence [Member]
Loans and Leases Receivable, Net of Deferred Income	362,942	362,733
Less allowance for credit losses - loans	3,031	3,317		2,519	2,939
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	144,657	142,665
Less allowance for credit losses - loans	1,875	1,871		1,865	1,907
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	123,132	116,614
Less allowance for credit losses - loans	2,887	2,846		3,833	2,668
Home Equity Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	80,027	81,126
Less allowance for credit losses - loans	1,368	1,430
Mortgage Warehouse Lines [Member]
Loans and Leases Receivable, Net of Deferred Income	108,858	108,848
Less allowance for credit losses - loans	0	0		0	0
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income	43,107	43,756
Less allowance for credit losses - loans	202	205		178	174
Credit Card Receivable [Member]
Loans and Leases Receivable, Net of Deferred Income	2,251	2,286
Less allowance for credit losses - loans	24	26		17	17
Bank Overdrafts [Member]
Loans and Leases Receivable, Net of Deferred Income	1,347	1,013
Less allowance for credit losses - loans	$ 348	$ 254		$ 269	$ 354

[1] Derived from audited consolidated financial statements.